Coupling-bolt.



cNrTED STATES PATENT OFFICE.

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speimm of Lazevsraana Patentdllily. 13;;191145 Aspiration meaapynaa; 191s@ semina 762.855:A

To all 'whomit may concern:

Be it known that. I; ILIEIIRAI- C: OEHRLE, la citizen ofthe United States, residing at Denver,in the count-y. of Denver, andState of Colorado, have invented certain new and. useful Improvements in Gouplijngp-Bolts, c t" which the followingis a.specification.

My invention relates toLimprovements in couplingbolts and its object resides in the provisionof a f .device` 0f simple construction whichis adapted to adjust to a li mi ted'eX tent, the relative 1 position of two pieces which it connects.V

While my invent-ion mayvbereffectivelyy employed for many other purposes, it` is particularly adapted for use as a fastening means to secure the overlapping ends ofrlongitudinall-y alined machine parts, inasmuch as by its use-the said parts may be adjustedwith relation to each other to lengthenor shorten the distance between the elements with which they are connected without disturbing their said alinement.

In the accompanying drawings my invention has been shown as applied to. a splicejoint between the stuhof aneccentric-ring and the blade which connects the eccentric with a. slide-valve or other reciprocating elethe blade is usually tittedin a longitudinal* recess ot the stub whereby it is securely held against lateral displacement while being lonitudinallyY adjustable, and the two pieces are rigidly secured to each other by means of bolts which 'occupy registering openings in the same and which are fastened by means of nuts screwed onto the threaded extremities of their shanks. v

In proceeding in accordance with the present invention I provide a bolt whose shank has adjacent its head; an integral eccentric collar which in practice, occupies the bolthole in one of the parts to be connected, and a headed bushing which is designed t0 be inserted in the bolt-hole of the other part and which has an eccentric bore for the reception of the body-portion of the bolt-'shank which as usual is threadedat its extremity for the application of aA nut to secure the members ofthe device and the parts to which it is applied in their adjusted position. By

turning` one or both of the members of my improved coupling bolt. the two parts conare in register. be moved in either direction, a distance equal to the eccentr1c1ty of the two, portions ofthe boltfshank or of the gbore ofthe bushing without lateraljdisplace; ment.'

lathe-drawings in the various views.of

whichlike parts are similarly designated Figures 15 2 and@ represent similar longi tudinal sections through tivo lapping machine-parts connectedl by two offmy irn-z provedcouplingbolts the members ofwhiclhZ liayeibeen shown in the ditferentrelative positlons to which they mayi, beY adjustedj to lengthen or shortenthe connection produced' by the said parts, and Fig- 4, a section :taken along theline 4 4, Fig. 3.

Referrin to. thedrawngs in detailgthje reference c "aracter 2 designatesthe` stubotan.eccentric-ringand3 the blade-which is longitudinally slidafbly fitted, inv a recess 44.

formedin one .side thereof.' The two parts.2

3.1 have as, usual, bolt-holes of` equa diameter to receive the coupling bolts a-ndll, this connetionit, will be. observed that the.v

use of.` my inventionv does not` require.any

changes whatsoever-in the construct-i011: of',`

the RillS to which'it is applied.

Myjimproved coupling bolt consists.cfa!

bolt-memberQ Y5, thek shank of which -has ade jacent its head 14 an eccentric collar 8 of larger diameter. the end of the body portion 7 of the shank being threadedfor the appli-l cation of a nut 9. The other member of the device consists of a bushing 10 whose exterior diameter corresponds with that of the collar portion 8 of the bolt-shank and which has an eccentric bore 12 adapted to receive the body portion 7 of the same. The bushing is provided with a head 13 to engage the outer surface of the part to which it is applied. y

To connect two parts by the use of my invent-ion, the shank of the bolt-member is inserted through corresponding bolt-holes of the same, one of which is occupied by its ecbushing the same is shortened.

the bolt through an arc of 180 degrees to the position shown in Fig. 1, or the connection may be lengthened an equal amount by'leaving the bolt in the position it occupied and turning the bushing through a. similar arc to the position illustrated in Fig. 3. It is obvious that in case the bolt is originally in the position shown in Fig. 1 and the holes in the two parts are in alinement, the adjustment of the bolt will serve to lengthen the connection, while by movement of the Having thus described my invention what I claim and desire to secure by Letters-Patent is:

1. A device ofv the character described comprising a headed bolt the shank of which has adjacent the head of the bolt an eccentric collar, and an eccentrically bored bushing rotatable on the body portion of the shank.

2. A device of the character described comprising a headed bolt,l the shank of Vwhich is threaded at its extremity for the application of a nut and has adjacent the head `of the bolt, an eccentric collar, and an eccentrically bored bushing rotatable on the body portion of the shank.

3. A device of the vcharacter described comprising a bolt the shank of which is composed of two relatively eccentric portions, and an eccentrically bored bushing rotatable on one of said portions, and adapted for insertion in a bolt hole.

4. A device of the character described comprising a bolt the shank of which. is

composed of two relatively eccentric por- 6. A joint composed of parts having regl istering bolt holes, a headed lbolt the shank of which is threaded at its extremity for the application of a nut and has an eccentric collar rotatably fitted in one of said boltholes, an eecentrically bored bushing rotatable on the shank, within the other bolthole, and a nut on the threaded end of the shank. l

7. A joint composed of parts having registering bolt holes of equal diameter, aV headed bolt the shank of which is threaded at its extremity for the application of a nut and has an eccentric collar rotatably fitted ink one of said bolt-holes, an eccentrically bored bushing rotatable on the shank. within the rother bolt-hole, and a Anut on the threaded end of the shank.

`In testimony whereof I have aixed my signature in presence oftwo witnesses. HENRY C. OEHRLE. Witnesses:

G. J. Romilrbn'r, L. RnoADEs. 

